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3801.

Question : Transgenic plants are the ones

Answer»

Produced by a SOMATIC embryo in ARTIFICAL medium
Generated by INTRODUCING FOREIGN DNA in to a cell and regenerating a plant from that cell
Produced after protoplast fusion in artificial medium
Grown in artificial medium after hybridization in the field

Solution :Transgenic plants are those plants in which a foreign gene has been INTRODUCED and stably integrated into host DNA.
3802.

Question : Transgenic plants are produced by

Answer»

INTRODUCTION of foreign GENE
Inducing gene mutation
Deleting SEX CHROMOSOMES
Inducing gene mutation

Solution :Introduction of foreign gene
3803.

Question : Transgenic plants are

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Produced by a somatic embryo in artificial medium
Generated by introducing foreign DNA in a CELL and REGENERATING a plant from that cell
Produced after protoplast fusion in artificial medium
Grown in artificial medium after HYBRIDISATION in the FIELD

Answer :B
3804.

Question : Transgenic plants are produced by using Ti-plasmid from

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AGROBACTERIUM TUMEFACIENS
PSEUDOMONAS putida
RHIZOBIUM leguminosarum
E.coli

ANSWER :A
3805.

Question : Transgenic plants are plants having

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No genes
Genes in transposition
Genes have no FUNCTION to perform
Genes of ANOTHER organism

Answer :D
3806.

Question : Transgenic models exist for which of the following human diseases

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a,b and C
a ,b and d
b,c d and e
a,b,c and e

SOLUTION :Transgenic models exist for human DISEASES are CANCER cystic fibroisi rheumatoid arthritis and alzheimer 's
3807.

Question : Transgenic organisms are used by humans in various fields, especially to test the action of vaccines before they are used in humans. According to your opinion is there any ethical issue in such experiments? Comment.

Answer»

Solution :Yes, some ethical STANDARDS are REQUIRED to evaluate the morality of all human activity that MIGHT help or harm living ORGANISMS. The MANIPULATION of living organisms by the human race cannot go on any further without regulation.
3808.

Question : Transgenic mice are being used to test the safety of:

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POLIO vaccine
BCG vaccine
antitrypsin
hepatities B vaccine

Answer :A
3809.

Question : Transgenic hirudin is obtained from

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OCIMUM SANCTUM
Brasica napus
Potato
Tomato

Solution :Brasica napus
3810.

Question : Transgenic golden rice is enriched with high

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LYSINE
METHIONINE
GLUTENIN
VITAMIN A

Answer :D
3811.

Question : Transgenic food crop which may help in solving the problem of night blindness in developing countries is

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Вt soybean
GOLDEN RICE
flavr SAVR tomato
starlink maize

Solution :Golden rice
3812.

Question : Transgenic food crop which help in solving the problem of night blindness in developing countries is

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BT COTTON
GOLDEN rice
fivrsavr tomatoes
starlink maize

Answer :B
3813.

Question : Transgenic animals that produce useful biological products can be created by the introduction of the portion of DNA (or genes) which codes for a particular product to treat

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a,c and c
a and c
a and c
a,B and d

Solution :Transgenic ANIMLAS that produce useful biological products can be created by the introduction of the portion of DNA (or genes) which codes forapaticular product to treat emphysema cystic fibrosis and phenylketonuria (PKU)
3814.

Question : Transgenic animals that produce useful biological products can be createdby biotechnology. In 1997 the first transgenic cow was produced. Name the cow and significance of its milk.

Answer»

Solution :Rosie Milk PRODUCED by this transgenic cow contained the protein - human alpha LACTALBUMIN and was nutrionally a more BALANCED PRODUCT for human BABIES than natural cow milk.
3815.

Question : Transgenic cotton plant which is resistant to boll worm got the gene from

Answer»

BACILLUS thuringiensis
Spirulina
Dictyostelium
Trichonympha

Answer :A
3816.

Question : Transgenic Brassica napus has been used for synthesis of:

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Hirudin
Heparin
Polygalacturonase
Cry protein

Answer :A
3817.

Question : Transgenic animals are those which have

Answer»

FOREIGN DNA in some of their CELLS
Foreign DNA in all their cells
Foreign RNA in some of their cells
Foreign RNA in all their cells

SOLUTION :Foreign DNA in all their cells
3818.

Question : Transgenic animals are the animals in which a foreign gene is expressed. Such animals can be used to study the fundamental biological process, phenomenon as well as for producing products useful for mankind. Give one example for each type.

Answer»

Solution :To study fundamental biological process like effect of insulin, effect of GROWTH FACTORS(IGF-I, IGF-II). To produce useful PRODUCTS like milk from ROSIE cow having lactalbumin.
3819.

Question : Transgenic animals are animals that have had their DNA manipulated to possess and express an extra gene. Comment on some of the areas where these transformed organisms are used.

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SOLUTION :a. To study the normal physiology and development: Transgenic animalscan be SPECIFICALLY designed to allow the study of how GENES are regulated and how they affect the normal functions of the body and its development.
b. Production of useful PRODUCTS: Transgenic animals that produce useful biological products can be created by the production of the portion of DNA which codes for a particular product.
c. Testing the safety of vaccines: Some transgenic organisms (mice) are being DEVELOPED for use in testing the safety of vaccines before they are used by humans.
3820.

Question : Transgenci animals are used for production of

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HAEMOGLOBIN
lacteferon
Both (a) and (B)
NONE of these

Answer :C
3821.

Question : Transgenic animal has

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FOREIGN DNA
recipient DNA
both a & b
None of the above

ANSWER :C
3822.

Question : Transformation of normal cells into cancerous neoplastic cells may be induced by : - (i) x-rays (ii) Chemical agents (iii) gamma-rays (iv) Oncovirus (v) Smoking (vi) U.V. rays

Answer»

i, III, vi
i, iii, IV, vi
i, ii, iii, iv, v, vi
i, ii, iii, iv, vi

Answer :C
3823.

Question : Transformation of the early reducing atomsphere of the Earth intpo an oxidizing atomsphere was mainly due to the activities of :

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ANAEROBIC heterotrophs
Aerobic photosynthesizers
Anaerobic photosynthesizers
Anaerobic chemoheterotrophs

Solution :N//A
3824.

Question : Transformation was discovered by

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MESELSON and Stahl
Hershey and CHASE
Griffith
Watson and Crick

SOLUTION :Griffith
3825.

Question : Transformation experiments were done by

Answer»

Tautum
ZINDER
LEDERBERG
GRIFFITH

ANSWER :D
3826.

Question : Transfer RNA :-

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forms hydrogen bonds between its codon and the ANTICODON of an m-RNA in the 'A' site of a ribosome
binds specific amino acid by the help of AMINOACYL t-RNA synthetase
uses GTP as the ENERGY source to bind its amino acid
is TRANSLATED from m-RNA

Answer :B
3827.

Question : Transfer of pollen to the stigma of another flower of the same plant is(A) allogamy(B) xenogamy(C) autogarmy(D) geitonogamy

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allogamy
xenogamy
autogarmy
geitonogamy

Answer :D
3828.

Question : Transfer of segments between non homologous chromosome _____

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SOLUTION :TRANSLOCATION
3829.

Question : Transfer of pollen grains from the anther to the stigma of a flower is called pollination. Grass plants generally have small , inconspicuous flowers while plants belonging to many angiosperm bear conspicuous coloured flowers. Comment on the type of pollination taking place in these two groups.

Answer»

SOLUTION :1) WIND POLLINATION
2) Pollination by biotic AGENTS.
3830.

Question :Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called :

Answer»

xenogamy
geitonogamy
karyogamy
autogamy

Answer :B
3831.

Question : Transfer of pollen grains from anther to the stigma of flower is called pollination. Grass plants generally have small inconspicuous flowers while plants belonging to many angiosperm families bearing conspicuous coloured flowers. Comment on the type of pollinatin taking place in these two groups.

Answer»

Solution :GRASSES : WIND POLLINATION / ANEMOPHILY. Family bears CONSPICUOUS coloured flowers - insect pollination / entomophily/zoophily
3832.

Question :When pollens are transferred from anther of a flower to stigma of another flower of the same plant , pollination is referred to as :

Answer»

Xenogamy
Geitonogamy
Autogamy
Allogamy

Answer :B
3833.

Question : Transfer of pollen grains from anther to the stigma of another flower on the same plant is called?

Answer»

SOLUTION :SELF incompatiility
3834.

Question : Transfer of information from DNA to RNA is called ……………..

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TRANSCRIPTION
TRANSLATION
TRANSDUCTION
MIGRATION

SOLUTION :transcription
3835.

Question : Transfer of genetic material into a bacterial cell through a viral vector is known as ……….. .

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transformation
transduction
transfection
translation

Answer :B
3836.

Question : Transfer of genes from one gene pool to another is:

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GENETIC drift
Gene flow
Speciation
Mutation

Answer :B
3837.

Question : Transfer of genetic material into a bacterial cell through a viral vector is know as .....

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transformation
transduction
TRANSFECTION
TRANSLATION

ANSWER :b
3838.

Question : Transfer of gene between populations that differ genetically from one another is called ……….. .

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GENE mutation
Gene flow
Genetic drift
Genetic recombination

Answer :B
3839.

Question : Transfer of gene between populations that differ genetically from another is called ........

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Gene MUTATION
Gene FLOW
Genetic drift
Genetic RECOMBINATION

Answer :B
3840.

Question : Transfer of any gene into a completely different organism can be done through

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Genetic engineering
TISSUE CULTURE
TRANSFORMATION
NONE of these

ANSWER :A
3841.

Question : Transfer of food energy in oranisms in an ecosystem through a series of repeated eating and being eaten.

Answer»


ANSWER :FOOD CHAIN
3842.

Question : Transerse binary fission occurs in

Answer»

Euglena
Amoeba
Hydra
Paramecium

Answer :D
3843.

Question : Transcription requires which of these enzyme ?

Answer»

RNA BASED RNA polymerase
RNA based DNA polymerase
DNA based RNA polymerase
DNA based DNA polymerase

Answer :C
3844.

Question : Transcription means the synthesis of ………………

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DNA
RNA
PROTEINS
LIPIDS

SOLUTION :RNA
3845.

Question : Transcription unit

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starts with TATA box
starts with PALINDROME regions and ends with rho factor
starts with promoter region and ends in TERMINATOR region
starts with C A A T region.

Solution :(c) : TRANSCRIPTION unit is the distance between sites of INITIATION and termination by RNA polymerase . It may include more than one gene. RNA polymerase produces transcription sequences.
3846.

Question : Transduction was demonstrated by - in -

Answer»

ZINDER and LEDERBERG . Salmonella
Lederberg and TATUM .E.Coli
Griffith .Diplococcus pneumoniae
Avery, MacLeod and McCarty. STREPTOCOCCUS pneumoniae

Answer :A
3847.

Question : Transcriptionally active chromatin is

Answer»

EUCHROMATIN
HETEROCHROMATIN
Both
None

ANSWER :A
3848.

Question : Transcription is the formation of

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mRNA
tRNA
rRNA
protein

Answer :A
3849.

Question :Transcription is the transfer of genetic information from

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A]CHROMOSOME to cytoplasm
B]TRNA to mRNA
C]DNA to mRNA
D] mRNA to rRNA

ANSWER :C
3850.

Question : Transcription and translation, both affected by deficiency of :

Answer»

MG ions
K ions
Calcium
Boron

Answer :A